Ceiling fan



FIG. 1 is a perspective view of a ceiling fan, showing my new design;

FIG. 2 is a front elevational view of the ceiling fan shown in FIG. 1, the opposite and adjacent sides being substantially mirror images of the front elevational view.

FIG. 3 is a top plan view of the ceiling fan shown in FIG. 1; and,

FIG. 4 is a bottom plan view of the ceiling fan shown in FIG. 1. 

The ornamental design for a ceiling fan, as shown and described. 